Blowpipe



B. L. KISSEL.

BLOWPIPE.

APPLlcATloN FILED SEPT. 9. 1912.

Patented July 6,V 1915.

2 suns-.SHEET 1.

5M vento@- ma v Ottoman):

B. L. KISSEL.

BLOWPIPE. 'APPLICATION FILED SEPT. 9, 1912.

Patented July 6, 1915.

2 SHEETS-SHEET 2.

Suva nto/a Ww@- M y @5% v f/ BERNARD Il. KISSEL, 0F JOFLIN, MISSOURI.

BLOWPIPE. I

Specification 'of Letters Patent.

Patented July e, 1915.

Application led September 9, 1912. Serial No. 719,428.

To all whom 'it may concern Be it known that I,` BERNARD L. KrssEIl, a citizen of the IUnited States, residing at Joplin, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in Blowpipes, of which the following is a specification.

-Myinventlon relates to blowpipes, for use on nfetals that fuse only under the most intense heat; and more particularly for' a blowpipe and clamping supportv for con- Inecting it to a casting machine for use in casting dental inlays, and the like.

The object thereof is to so construct the device that it will mix natural gas or artificial gas with nitrous oxid; or gas and air, or a'mixture of oxygen and hydrogen; or gasolene with air or nitrous oxid gas, as desired; and to regulate the flame and produce erfect combustion of the ases used.

A urther object is to provi e means for connecting it to a casting fiask or the like, or to clamp it to a bench or table, in accordance with the nature of the work to bey performed. l

In the drawingse forming a part of this specification, and in which like symbols of reference represent corresponding parts in thevseveral views z-Figure 1 Ais a central longitudinal sectional view through the blowpipe; Fig. 2 a plan view of the blowpipe; 3 a detached sectional view of the hood as it appears connected to the fiask; Fig. 4 a detail view of the adjustable tip; Fig. 5 a sectional view'of. the end of outertube with pin, said pin being adapted to engagea slot in hood to control same; Fig. 6 a'view of the blowpipe showing it connected to a nitrous oxid tank by means of a yoke, and blowpipe clamp in the act of casting; Fig. 7 is Ia plan view of. the clamp for supporting andv connecting it to a fiask; Fig. '8 is a side view of the same; Fig. 9 is an end view; and, Fig. 10 is a view of clamp for connecting it to'a bench, or the like.

' The numeral 1 represents the blowpipe; 2 the inner or-nitrous oxid tube; 3 the gas supply tube; 4 the air or nitrous oxid tube; 5 a hollow stem valve for connection with the nitrous oxid tube,-the same adapted to be controlled by turning set nut 49 with thumb; 6 a nitrous oxid inlet tube adapted to be controlled as a stem valve; and a bypass for connecting the device with 'a tube 8 on yoke 9, by means of a fiexible pipe, and thus warm the valve 10 of the yoke.

11 1s the outlet from the yoke 9, the same adapted to be connected byl a flexible tube w1th tube 6; 12 a screw to securethe yoke to the oxid tank; 13 a clamp for connecting the handle tube 6 with a bench,` or the like;

and 14 is a blowpipe clamp for holding the blowpipe to the flask 15in the casting operation, as illustrated in dotted lines.

16 isa 4clamp or clip for grasping the setnnt 17 of the blowpipe and holding packing ring 19 of the hood 18 on the' fiask 15, making the Joint betweenblowpipe and casting flask.

2() is a duct leading from the gas supply pipe; 21 a complete opening in the air supplyy tube; and 33 a brace connecting tubes 3 and 4. l

22, of Fig. 9, is a catch to receive and hold the head`23 carried by the rod 24 of the handle 25, as the same moves upon the hinge 26; and 27 is a coping or base on the clamp 14.

28 is a pin on the gas tube adapted to engage a slot 29 in the hood 18 and permit play thereon and govern the mixing point,

which in the case of natural gas or gasolene is at the point 30. -If the blowpipe is used in a manufacturing as district the hood 18 is given a twist, sen ing pin 28 into slot 31, setting the mixing point at 32.

34 is a spring surroundingthe gas pipe to hold the hood in its proper position with regard to the blowpipe and is adjustable by means of a set nut 17. 35 is a valve at the" end of the-nitrous oxid pipe 2, the same having orifices 36, which are adapted to register with similar orifices -37 in cap 38. l l

39 is an orifice in the cap; and 40a similar orifice in the end of tube 2 to permit passage of the fluid therefrom, but not registering when closed.

41 are ports in the end of pipe 1 to permit passage of the fluid from the same; and

42 a spring to hold-cap 38 in its proper p othe same; and the valve to control the tank 4:6. l

` simple bands, the bench "clamp isbrought'." intouse.` By setting tll'eblowpipe up on its 47, of Fig. 10, is a screw for adjusting the` clamp 13 to therblowpipe at `6;. and 48 is a screw for connecting the clamp 13 to the work bench. l i

The operation of the device 4will be apparent from the foregoing `description ofthe various parts and theirlnterrelation. If the.

device is used for small solderings, such as handle endy and clam inkr` iti.atf50 bythe bench clamp it can be el in an*upright;po?-y sitiOn, or. adjusted to any anglej;desi1ed,by

asto leave hiswork.

ings where natural gas is used thev mixing'` point as before explained is governed by the pin 28 engaging slot 29, setting the proper" mixing point at 30. When used with manufactured gas the hoodflS is given a twist sending pin 28 in slot 31 and thereby setting the mixing point `for gas at 32. When use with gasolene the mixing'pointis the same as natural gas.

lays, the blowpipe clamp is used, the llask containing the mold is set on the coping of the blowpipe-clamp, the stem valve is made continuous with rnitrous oXid supply tube,

andthe flame is directed on the metal in the mold.y When the gold is at the proper molten statefthe handle of thefclamp is brought down tight, engaging the catchymaking the` joint between the hood on the blowpipe andthe ilask, automatically seatf ing the valves, closing the gas supply and the r'small lamevalve 39, and opening 'the side valves 37, permitting an equal distribution of the nitrous oxidk gas over the metal, the pressure of which forces it into the mold. l

Having' now fully described my invention, what I 'claim as new, and desire to secure by Letters-Patent, isz

1. In a blowpipe, a main tube, a central tube disposed within the same,'a hollow stem valve adapted to control the central tube and supply iluid thereto, and means for controlling the outlet of the central tube.

2. In a blowpipe, a'central tube, a hollow' stem valve'` to control the same, a tube surroundingthe central tube, inlet tubes leading to the `central and surrounding tube to conduct air and gas tothe same, a hood cony* nected to the endof the blowpipe, and means-rv for controlling the supplyand delivery of the various fluids. f

3. In a blowpipe, internaland external tubes, inlets at the end and sides of said tubes for the fluids, lateral tubes* leading to:k

the inlets `for airand gas, a stem valve to control the internal tube, a by-pass leading to v`the gas supply tube and acting as a support for the device, a yoke adapted to be connect;-

bloivpipe, a hollow stem valve leading from,

the sameand adapted to control the internal tubeand means'for connecting .the handle to abehch orfthe like. v

5.!A blov'vpipe, consisting of an internalV tube, `an external tube, means forsupplying gas, air, and nitrous oxid to the tubes, a

rhood on the end of the external tube, a pin on the external tube, and a slot in the hood to receive the pin and adjust the hood and thus control the various fluids.`

6. A` blowpipe, consisting of an internal and external tube, a pin on the externalv tube, a hood formed with grooves in the same to receive the pin and control the re- 'lationship of the parts, a cap for the internal tube, said cap formed with lateral and front outlets, and lateral and front outlets When used as casting device for dental inin the internal tube to operate in conjunc-` tion with the cap outlets. i v l 7. A blowpipe, consisting of internal and external tubes, means for conveying air, gas,

8.r .blovvpipe, consisting` of inner and outer tubes, inlets for air, gas and nitrous' `oxid at lthe sides and end of the tubes, a

oke forl` connecting the device to a tank, a y-pass leading from the blowpipe to the yoke to warm the nitrous oxid tank outlet, a cap on the end Aoli' the inner tube, outlets leadingfron the outer tube, a hood having an inturned flange, and a lange on the cap of the inner tube forming a valve adapted to be seated on the inturned flange.'

9. A blowpipe, consisting of inner and Y lruiter tubes, a handle, an inlet tube in the handle, a hollow stem valve connected to thesame and adapted to control theinternal tube, a gas inlet -leading to the outer tube,

an outlet leading from ther inner tube, an `Outlet leading from the outer tube, a hood,

a spring surrounding the outer tube to con-w` grooves formed in the hood to receive the pin,`by means of which the hood may be ad'- l justed with reference to the outlets leading from the innerand outer tubes to change the mixing point 'of the gases. v

10. A blowpipe, consisting of internal and :trol the hood, a pin on the outer tube, and

external tubes, means for conveying air, gas, In testimon whereof I aHX my signature and n1trous ox1d to the same, a stand for 1n presence o two wltnesses.

supportn the blowppe, an upright standard extening from the base of the same, a DR' BERNARD L' KISSEL 5 lever connected to the standard for holding Witnesses:

it on-the stand, and means for securing the n HORACE Mnnnn'r,

lever. EUNICE BARNARD. 

